Is Java an Object Oriented language?

Is Java an Object Oriented language?
by

1 Answer

Answer :

A: Yes.
by

Related questions

The pure object oriented programming language with extensive metadata available and modifiable at run time is (A) Small talk (B) C++ (C) Java (D) Eiffel

Description : The pure object oriented programming language with extensive metadata available and modifiable at run time is (A) Small talk (B) C++ (C) Java (D) Eiffel

Last Answer : (A) Small talk

Which one of the following is true for Java? A) Java is object oriented and interpreted B) Java is efficient and faster than C C) Java is the choice of everyone. D) Java is not robust.

Description : Which one of the following is true for Java? A) Java is object oriented and interpreted B) Java is efficient and faster than C C) Java is the choice of everyone. D) Java is not robust.

Last Answer : A) Java is object oriented and interpreted

Language model used in LISP is ................. (A) Functional programming (B) Logic programming (C) Object oriented programming (D) All of the above

Description : Language model used in LISP is ................. (A) Functional programming (B) Logic programming (C) Object oriented programming (D) All of the above

Last Answer : (A) Functional programming

Superficially the term “object-oriented”, means that, we organize software as a (A) collection of continuous objects that incorporates both data structure and behaviour. (B) collection of discrete objects that incorporates both discrete structure and behaviour. (C) collection of discrete objects that incorporates both data structure and behaviour. (D) collection of objects that incorporates both discrete data structure and behaviour.

Description : Superficially the term object-oriented , means that, we organize software as a (A) collection of continuous objects that incorporates both data structure and behaviour. (B) collection of ... and behaviour. (D) collection of objects that incorporates both discrete data structure and behaviour.

Last Answer : (C) collection of discrete objects that incorporates both data structure and behaviour.

Which of the following statements concerning Object-Oriented databases is FALSE? (A) Objects in an object-oriented database contain not only data but also methods for processing the data. (B) Object-oriented databases store computational instructions in the same place as the data. (C) Object-oriented databases are more adapt at handling structures (analytical) data than relational databases. (D) Object-oriented databases store more types of data than relational databases and access that data faster.

Description : Which of the following statements concerning Object-Oriented databases is FALSE? (A) Objects in an object-oriented database contain not only data but also methods for processing the data. (B ... Object-oriented databases store more types of data than relational databases and access that data faster.

Last Answer : (C) Object-oriented databases are more adapt at handling structures (analytical) data than relational databases.

Abstraction and encapsulation are fundamental principles that underlie the object oriented approach to software development. What can you say about the following two statements? I. Abstraction allows us to focus on what something does without considering the complexities of how it works. II. Encapsulation allows us to consider complex ideas while ignoring irrelevant detail that would confuse us. (1) Neither I nor II is correct. (2) Both I and II are correct. (3) Only II is correct. (4) Only I is correct.

Description : Abstraction and encapsulation are fundamental principles that underlie the object oriented approach to software development. What can you say about the following two statements? I. Abstraction allows us to focus on what something ... and II are correct. (3) Only II is correct. (4) Only I is correct.

Last Answer : (1) Neither I nor II is correct.

All java classes are derived from A) java.lang.Class B) java.util.Name C) java.lang.Object D) java.awt.Window

Description : All java classes are derived from A) java.lang.Class B) java.util.Name C) java.lang.Object D) java.awt.Window

Last Answer : D) java.awt.Window

The command javac A) Converts a java program into binary code B) Converts a java program into bytecode C) Converts a java program into machine language D) None of the above.

Description : The command javac A) Converts a java program into binary code B) Converts a java program into bytecode C) Converts a java program into machine language D) None of the above.

Last Answer : B) Converts a java program into bytecode

Java has its origin in A) C programming language B) PERRL C) COBOL D) Oak programming language

Description : Java has its origin in A) C programming language B) PERRL C) COBOL D) Oak programming language

Last Answer : D) Oak programming language

Which one of the following is correct? (A) Java applets cannot be written in any programming language (B) An applet is not a small program. (C) An applet can be run on its own. (D) Applets are embedded in another applications.

Description : Which one of the following is correct? (A) Java applets cannot be written in any programming language (B) An applet is not a small program. (C) An applet can be run on its own. (D) Applets are embedded in another applications. 

Last Answer : (D) Applets are embedded in another applications.

A software company needs to develop a project that is estimated as 1000 function points and is planning to use JAVA as the programming language whose approximate lines of code per function point is accepted as 50. Considering a=1.4 as multiplicative factor, b=1.0 as exponention factor for the basic COCOMO effort equation and c=3.0 as multiplicative factor, d=0.33 as exponention factor for the basic COCOMO duration equation, approximately how long does the project take to complete? (1) 11.2 months (2) 12.2 months (3) 13.2 months (4) 10.2 months

Description : A software company needs to develop a project that is estimated as 1000 function points and is planning to use JAVA as the programming language whose approximate lines of code per function point is accepted as 50. Considering a=1. ... ? (1) 11.2 months (2) 12.2 months (3) 13.2 months (4) 10.2 months

Last Answer : Generally, any projects are measured in weeks. However, the complex project might take more time depending on the level of object re-use available.

Basic is language. A) a procedural B) an object oriented C) both A and B D) none of the above

Description : Basic is language. A) a procedural B) an object oriented C) both A and B D) none of the above

Last Answer : Answer : A

Object-oriented concepts are not new. The first OO language was considered to be a) ALGOL-68 B) FORTRAN 77 c) CMODULA d) SIMULA 67.

Description : Object-oriented concepts are not new. The first OO language was  considered to be a) ALGOL-68 B) FORTRAN 77 c) CMODULA d) SIMULA 67.

Last Answer : d) SIMULA 67.

Assembly language program is called. a. Object program b. Source program c. Oriented program

Description : Assembly language program is called. a. Object program b. Source program c. Oriented program

Last Answer : b. Source program

_________is popular object oriented programming language used for general purpose: a) C b) C++ c) FORTRAN d) None of These

Description : _________is popular object oriented programming language used for general purpose: a) C b) C++ c) FORTRAN d) None of These

Last Answer : b) C++

Classic OOP - Object Oriented programming can be traced back to a language called Simula, and in particular Simula 67, which was popular during the _____: a) 1930s b) 1960s c) 1950s d) None of These

Description : Classic OOP - Object Oriented programming can be traced back to a language called Simula, and in particular Simula 67, which was popular during the _____: a) 1930s b) 1960s c) 1950s d) None of These

Last Answer : b) 1960s

State any four object oriented programming language.

Description : State any four object oriented programming language.

Last Answer : Object oriented programming language: C++ Smalltalk Object pascal java Simula Ada Turbo pascal Eiffel C# Python

A …………… is an acyclic digraph, which has only one node with indegree 0, and other nodes have indegree 1. A) Directed tree B) Undirected tree C) Dis-joint tree D) Direction oriented tree

Description : A …………… is an acyclic digraph, which has only one node with indegree 0, and other nodes have indegree 1. A) Directed tree B) Undirected tree C) Dis-joint tree D) Direction oriented tree

Last Answer : A) Directed tree

State whether true or false. i) A connection oriented protocol can only use unicast addresses. ii) The anycast service is included in IPV6. A) True, True B) True, False

Description : State whether true or false. i) A connection oriented protocol can only use unicast addresses. ii) The anycast service is included in IPV6. A) True, True B) True, False

Last Answer : i) A connection oriented protocol can only use unicast addresses.

Binary symmetric channel uses (A) Half duplex protocol (B) Full duplex protocol (C) Bit oriented protocol (D) None of the above

Description : Binary symmetric channel uses (A) Half duplex protocol (B) Full duplex protocol (C) Bit oriented protocol (D) None of the above

Last Answer : (A) Half duplex protocol

Which one of the following statements, related to the requirements phase in Software Engineering, is incorrect ? (A) “Requirement validation” is one of the activities in the requirements phase. (B) “Prototyping” is one of the methods for requirement analysis. (C) “Modelling-oriented approach” is one of the methods for specifying the functional specifications. (D) “Function points” is one of the most commonly used size metric for requirements.

Description : Which one of the following statements, related to the requirements phase in Software Engineering, is incorrect ? (A) Requirement validation is one of the activities in the requirements phase. (B) ... . (D) Function points is one of the most commonly used size metric for requirements. 

Last Answer : (C) “Modelling-oriented approach” is one of the methods for specifying the functional specifications. 

Which of the following is false regarding the evaluation of computer programming languages? (A) Application oriented features (B) Efficiency and Readability (C) Software development (D) Hardware maintenance cost

Description : Which of the following is false regarding the evaluation of computer programming languages? (A) Application oriented features (B) Efficiency and Readability (C) Software development (D) Hardware maintenance cost

Last Answer : (D) Hardware maintenance cost

................. is subject oriented, integrated, time variant, non-volatile collection of data in support of management decisions. (A) Data mining (B) Web mining (C) Data warehouse (D) Database Management System

Description : ................. is subject oriented, integrated, time variant, non-volatile collection of data in support of management decisions. (A) Data mining (B) Web mining (C) Data warehouse (D) Database Management System

Last Answer : (C) Data warehouse

Which is the protocol for performing RPCs between applications in a language and system independent way? (A) Hyper Text Transmission Protocol (HTTP) (B) Simple Network Management Protocol (SNMP) (C) Simple Object Access Protocol (SOAP) (D) Simple Mail Transfer Protocol (SMTP)

Description : Which is the protocol for performing RPCs between applications in a language and system independent way? (A) Hyper Text Transmission Protocol (HTTP) (B) Simple Network Management Protocol (SNMP) (C) Simple Object Access Protocol (SOAP) (D) Simple Mail Transfer Protocol (SMTP)

Last Answer : (C) Simple Object Access Protocol (SOAP)

______provides a powerful and natural mechanism for organizing and structuring your software. It also explains how classes inherit state and behavior from their super classes and explains how to derive one class from another using the simple syntax provided by the java programming language: a) Object b) Inheritance c) Class d) None of These

Description : ______provides a powerful and natural mechanism for organizing and structuring your software. It also explains how classes inherit state and behavior from their super classes and explains how to derive one class ... the java programming language: a) Object b) Inheritance c) Class d) None of These

Last Answer : b) Inheritance

What is the default java package?

Description : What is the default java package?

Last Answer : A: java.lang

Name the primitive data-types in java.

Description : Name the primitive data-types in java.

Last Answer : A: byte, short, int, long, float, double, char and boolean

Mention other ways in which java handles exceptions.

Description : Mention other ways in which java handles exceptions.

Last Answer : A: Java can handle exception using the try-catch block, throws keyword and throw keyword.

Why did you write java.util package? (only if you use classes like Scanner or StringTokenizer)

Description : Why did you write java.util package? (only if you use classes like Scanner or StringTokenizer)

Last Answer : A: To include the functions of the Scanner or StringTokenizer class from the java.util package.

What is significance of import java.io.* in your program?

Description : What is significance of import java.io.* in your program?

Last Answer : A: The line imports all the classes of the java.io package into the current program.

What is Inheritance? How is it implemented in Java?

Description : What is Inheritance? How is it implemented in Java?

Last Answer : A: The ability of a class to adopt/share the properties (data and functions) completely or partially from another class is called Inheritance. In Java, it is implemented by the use of the keyword, extends.

What is Polymorphism? How is it implemented in Java?

Description : What is Polymorphism? How is it implemented in Java?

Last Answer : A: It literally means the ability to take ‘more than one forms’. The ability of a method to behave in more than one form is called polymorphism. In Java, it is implemented by method (function) overloading (compile time polymorphism) and method overriding (runtime polymorphism).

What is Data Abstraction? How is it implemented in Java?

Description : What is Data Abstraction? How is it implemented in Java?

Last Answer : A: Act of representing only essential features without including its background details is called Abstraction. Data Abstraction can also be defined as the process of hiding the implementation details and showing ... Java, it is implemented by the use of interfaces or by making the class abstract.

What is Encapsulation? How is it implemented in Java?

Description : What is Encapsulation? How is it implemented in Java?

Last Answer : A: Binding up of data and associated functions together into a single unit called (class) is called Encapsulation. In Java, it is implemented by the use of a class.

State true or false. i) comparisons precede logical operations in java ii) assignment operations succeed increment operations iii) arithmetic operations succeed comparisons iv) x precede + A) i-true, ii-true, iii-false, iv-true B) i-true, ii-false, iii-true, iv-false C) i-false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Description : State true or false. i) comparisons precede logical operations in java ii) assignment operations succeed increment operations iii) arithmetic operations succeed comparisons iv) x precede + A) i-true, ii-true, iii-false, ... false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Last Answer : A) i-true, ii-true, iii-false, iv-true

Each method in a java class must have a unique name . A) Not necessary B) True C) False D) None of the above

Description : Each method in a java class must have a unique name . A) Not necessary B) True C) False D) None of the above

Last Answer : A) Not necessary

In java, string is a ............. A) primitive data type B) abstract data type C) combination of boolean D) None of the above

Description : In java, string is a ............. A) primitive data type B) abstract data type C) combination of boolean D) None of the above

Last Answer : B) abstract data type

Data input is A) an abstract class defined in java.io B) a class we can use to read primitive data types C) an interface that defines methods to open files. D) an interface that defines methods to read primitive data types.

Description : Data input is A) an abstract class defined in java.io B) a class we can use to read primitive data types C) an interface that defines methods to open files. D) an interface that defines methods to read primitive data types.

Last Answer : D) an interface that defines methods to read primitive data types.

The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Description : The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Last Answer : D) both B and C

Data input is A) an abstract class defined in java.io B) a class we can use to read primitive data types C) an interface that defines methods to open files. D) an interface that defines methods to read primitive data types.

Description : Data input is A) an abstract class defined in java.io B) a class we can use to read primitive data types C) an interface that defines methods to open files. D) an interface that defines methods to read primitive data types.

Last Answer : D) an interface that defines methods to read primitive data types.

The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Description : The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Last Answer : D) both B and C

State true or false. i) init() is called after start() in applet ii) applets are used for networking iii) inheritance is a part of Java Foundation Classes iv) final does not prevent inheritance A) i-true, ii-true, iii-false, iv-true B) i-false, ii-false, iii-false, iv-false C) i-true, ii-true, iii-true, iv-true D) i-true, ii-false, iii-false, iv-false

Description : State true or false. i) init() is called after start() in applet ii) applets are used for networking iii) inheritance is a part of Java Foundation Classes iv) final does not prevent inheritance A) i-true, ii- ... C) i-true, ii-true, iii-true, iv-true D) i-true, ii-false, iii-false, iv-false

Last Answer : B) i-false, ii-false, iii-false, iv-false

Match the following. a) Java 1) is a tool for debugging java program b) Javah 2) is a tool for creating C-like header files c) Javap 3) runs java bytecode d) jdb 4) prints java code representation A) a-3, b-2,c-1 B) a-3, b-1, c-4, d-2 C) a-1, b-2, c-3, d-4 D) a-2, b-1, c-3, d-4

Description : Match the following. a) Java 1) is a tool for debugging java program b) Javah 2) is a tool for creating C-like header files c) Javap 3) runs java bytecode d) jdb 4) prints java code representation A) a-3, b-2,c-1 B) a-3, b-1, c-4, d-2 C) a-1, b-2, c-3, d-4 D) a-2, b-1, c-3, d-4

Last Answer : B) a-3, b-1, c-4, d-2

State true or false for the following statements in Java. i) Java beans slow down software development process. ii) Java Servlets do not have built in multithreading feature. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Description : State true or false for the following statements in Java. i) Java beans slow down software development process. ii) Java Servlets do not have built in multithreading feature. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Last Answer : A) i-false, ii-false

............... package is used by compiler itself. So it does not need to be imported for use. A) java.math B) java.awt C) java.applet D) java.lang

Description : ............... package is used by compiler itself. So it does not need to be imported for use. A) java.math B) java.awt C) java.applet D) java.lang

Last Answer : D) java.lang

The class string belongs to ................... package. A) java.awt B) java.lang C) java.applet D) java.string

Description : The class string belongs to ................... package. A) java.awt B) java.lang C) java.applet D) java.string

Last Answer : B) java.lang

JSP embeds in ................ in ...................... A) Servlet, HTML B) HTML, Java C) HTML, Servlet D) Java, HTML

Description : JSP embeds in ................ in ...................... A) Servlet, HTML B) HTML, Java C) HTML, Servlet D) Java, HTML

Last Answer : D) Java, HTML

State true or false for Java Program. i) Data members of an interface are by default final ii) An abstract class has implementations of all methods defined inside it. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Description : State true or false for Java Program. i) Data members of an interface are by default final ii) An abstract class has implementations of all methods defined inside it. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Last Answer : C) i-true, ii-false